CA2162516A1 - An analog-to-digital converter circuit - Google Patents

An analog-to-digital converter circuit

Info

Publication number
CA2162516A1
CA2162516A1 CA2162516A CA2162516A CA2162516A1 CA 2162516 A1 CA2162516 A1 CA 2162516A1 CA 2162516 A CA2162516 A CA 2162516A CA 2162516 A CA2162516 A CA 2162516A CA 2162516 A1 CA2162516 A1 CA 2162516A1
Authority
CA
Canada
Prior art keywords
analog
signal
level
converter circuit
digital converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2162516A
Other languages
French (fr)
Other versions
CA2162516C (en
Inventor
Soichi Tsumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of CA2162516A1 publication Critical patent/CA2162516A1/en
Application granted granted Critical
Publication of CA2162516C publication Critical patent/CA2162516C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/186—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedforward mode, i.e. by determining the range to be selected directly from the input signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

An analog-to-digital converter circuit uses a reference voltage which increases in proportion to an intensity level of an input analog signal, or a reference signal which decreases in proportion to an intensity level of undesired signal components included in an input analog signal that is AGC-controlled, and thus maintains an adaptive quantizing level for a varying input signal level or a varying desired signal level in an input signal without a digital-to-analog converter.
CA002162516A 1994-11-25 1995-11-09 An analog-to-digital converter circuit Expired - Fee Related CA2162516C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP315773/94 1994-11-25
JP6315773A JP2746158B2 (en) 1994-11-25 1994-11-25 AD conversion circuit

Publications (2)

Publication Number Publication Date
CA2162516A1 true CA2162516A1 (en) 1996-05-26
CA2162516C CA2162516C (en) 1999-09-28

Family

ID=18069382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002162516A Expired - Fee Related CA2162516C (en) 1994-11-25 1995-11-09 An analog-to-digital converter circuit

Country Status (4)

Country Link
US (1) US5748129A (en)
JP (1) JP2746158B2 (en)
AU (1) AU691984B2 (en)
CA (1) CA2162516C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6445320B1 (en) 1919-11-27 2002-09-03 Yamaha Corporation A/D conversion apparatus
US6657570B1 (en) * 2000-06-22 2003-12-02 Adc Telecommunications, Inc. Automatic level control for input to analog to digital converter
KR100505502B1 (en) * 2000-12-30 2005-07-29 매그나칩 반도체 유한회사 Analoge-to-Digital converter with Gamma Collection function
US6437645B1 (en) * 2001-02-15 2002-08-20 Texas Instruments Incorporated Slew rate boost circuitry and method
US6861968B2 (en) * 2003-01-21 2005-03-01 Cirrus Logic, Inc. Signal processing system with baseband noise modulation and noise filtering
US6961385B2 (en) * 2003-01-21 2005-11-01 Cirrus Logic, Inc. Signal processing system with baseband noise modulation chopper circuit timing to reduce noise
US7295813B2 (en) * 2003-07-30 2007-11-13 Motorola Inc. Current reduction by dynamic receiver adjustment in a communication device
JP5565206B2 (en) 2010-08-24 2014-08-06 ソニー株式会社 AD converter and voltage control method for AD converter circuit
DE102011004895A1 (en) 2011-03-01 2012-09-06 Continental Automotive Gmbh Electronic circuit arrangement for converting analog input signal into digital output signal in automotive industry, has charge subtraction device removing predetermined charge amount from capacitor in response to output signal
EP2903165A1 (en) * 2014-02-04 2015-08-05 Alcatel Lucent Method For Converting An Analogue Signal Into A Digital Signal, Analogue-To-Digital Converter System, Receiver Apparatus And Network Node Thereof
FR3036480B1 (en) * 2015-05-22 2017-06-02 Continental Automotive France CAPACITIVE PROXIMITY SENSOR FOR MOTOR VEHICLE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392386A (en) * 1967-02-23 1968-07-09 Hughes Aircraft Co Multilevel digital skimmer
US3544779A (en) * 1967-09-06 1970-12-01 Bell Telephone Labor Inc Self-adjusting radix converter
JPS51104556A (en) * 1975-03-12 1976-09-16 Hitachi Ltd
JPS58164387A (en) * 1982-03-24 1983-09-29 Casio Comput Co Ltd A/d converter for video signal
GB2135552A (en) * 1983-02-14 1984-08-30 Philips Electronic Associated Television receivers for time division multiplexed signals
JP2533062Y2 (en) * 1987-07-03 1997-04-16 ヤマハ株式会社 Analog-to-digital conversion circuit
US5119211A (en) * 1988-04-26 1992-06-02 Ricoh Company, Ltd. Image reader for an image forming apparatus
JPH0231377A (en) * 1988-07-21 1990-02-01 Ricoh Co Ltd Automatic level controller for sound recording and reproducing device
US5212826A (en) * 1990-12-20 1993-05-18 Motorola, Inc. Apparatus and method of dc offset correction for a receiver
JPH04326626A (en) * 1991-04-26 1992-11-16 Hitachi Ltd Soft discrimination circuit
US5231398A (en) * 1992-04-24 1993-07-27 Panasonic Technologies, Inc. Method and apparatus for self-tracking multiple analog to digital conversion
JPH06318869A (en) * 1993-05-10 1994-11-15 Hitachi Cable Ltd Video signal use a/d conversion circuit and agc circuit

Also Published As

Publication number Publication date
AU3782095A (en) 1996-05-30
AU691984B2 (en) 1998-05-28
JP2746158B2 (en) 1998-04-28
JPH08154106A (en) 1996-06-11
US5748129A (en) 1998-05-05
CA2162516C (en) 1999-09-28

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed